package org.smart4j.chapter2.util;

import org.apache.commons.lang3.StringUtils;

/**
 * Created by LIFR on 2017/3/17.
 */
public final class CastUtil {

    public static String castString(Object obj){
        return CastUtil.castString(obj,"");
    }

    public static String castString(Object obj,String defaultValue){
        return obj != null ? String.valueOf(obj):defaultValue;
    }

    public static double castDouble(Object obj){
        return CastUtil.castDouble(obj,0);
    }

    public static double castDouble(Object obj, double defaultValue){
        double doubleValue = defaultValue;
        if(obj != null){
            String strValue = castString(obj);
            if(StringUtil.isNotEmpty(strValue)){
                try{
                    doubleValue=Double.parseDouble(strValue);
                }catch (NumberFormatException e){
                    doubleValue = defaultValue;
                }
            }
        }
        return doubleValue;
    }

    public static long castLong(Object obj){
        return CastUtil.castLong(obj,0);
    }

    public static long castLong(Object obj, long defaultValue){
        long longValue=defaultValue;
        if(obj!=null){
            String strValue = castString(obj);
            if(StringUtil.isNotEmpty(strValue)){
                try{
                    longValue=Long.parseLong(strValue);
                }catch (NumberFormatException e){
                    longValue = defaultValue;
                }
            }
        }
        return longValue;
    }

    public static int castInt(Object obj){
        return CastUtil.castInt(obj,0);
    }

    public static int castInt(Object obj,int defaultValue){
        int intValue = defaultValue;
        if(obj != null){
            String strValue = castString(obj);
            if(StringUtil.isNotEmpty(strValue)){
                try{
                    intValue = Integer.parseInt(strValue);
                }catch (NumberFormatException e){
                    intValue=defaultValue;
                }
            }
        }
        return intValue;
    }

    public static  boolean castBoolean(Object obj){
        return CastUtil.castBoolean(obj,false);
    }

    public static boolean castBoolean(Object obj, boolean defaultValue){
        boolean booleanValue = defaultValue;
        if(obj != null){
            booleanValue = Boolean.parseBoolean(castString(obj));
        }
        return booleanValue;
    }
}
